text: /*
   * Copyright (C) 2016 Apple Inc. All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
   * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
   * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
   * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
   * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #pragma once
  
  #include <wtf/PrintStream.h>
  #include <wtf/text/WTFString.h>
  
  namespace WTF {
  
  class Indenter {
      WTF_MAKE_FAST_ALLOCATED;
  public:
      Indenter(unsigned count = 0, String string = "  "_s)
          : m_count(count)
          , m_string(string)
      { }
  
      Indenter(const Indenter& other)
          : m_count(other.m_count)
          , m_string(other.m_string)
      { }
  
      void dump(PrintStream& out) const
      {
          unsigned levels = m_count;
          while (levels--)
              out.print(m_string);
      }
  
      unsigned operator++() { return ++m_count; }
      unsigned operator++(int) { return m_count++; }
      unsigned operator--() { return --m_count; }
      unsigned operator--(int) { return m_count--; }
  
  private:
      unsigned m_count;
      String m_string;
  };
  
  } // namespace WTF
  
  using WTF::Indenter;
  